CHROMOSOME COMPARISONS

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Presentation transcript:

CHROMOSOME COMPARISONS

Evolution ENSI Lesson on Human Evolution - Hominoid Chromosomes Comparing bullet marks: “Numerous studies show that CHROMOSOME SIMILARITY is a good measure of GENETIC RELATEDNESS. The probability that two different chromosomes would independently have identical banding patterns by chance is essentially zero.” “Detailed studies provide clear evidence that any IDENTICAL CHROMOSOMES in two different species INDICATES COMMON ANCESTRY just as surely as identical scratch patterns on two bullets indicate that both came from the same gun.” (Wallace, 1966).

Evolution ENSI Lesson on Human Evolution - Hominoid Chromosomes Inversion Meiosis - Tetrads Crossing Over

Evolution ENSI Lesson on Human Evolution - Hominoid Chromosomes Primate Cladogram Based on Chromosome changes See lesson on this: “The Chromosome Connection” at www.BecomingHuman.org Access via ENSI lesson: “Comparison of Hominoid Chromosomes”